Contrast Nephropathy

• OK to scan:
  • Cr  < 2.0 mg/dL
  • and/or eGFR > 40
• Risk factors to suspect need for Cr prior to scan:
  • metformin use, age> 60, HTN, DM, gout, chemotherapy.
  • In non-emergent settings, patients without these risk factors can get a scan without labs and patients with some just require a Cr within last 30 days.
• Override note: contrast is considered diagnostically imperative and the benefits of contrast outweigh the risk of post-contrast acute kidney injury. Pre-procedural prophylaxis again post-contrast acute kidney injury with intravenous volume expansion therapy WILL BE utilized.